TY - JOUR ID - TI - Influence of Modified Atmosphere Packaging and Frozen-Storage Period in the Colour Characteristics of Poultry Meat AU - Jalilah H. Khalaf جليلة خلف AU - Majid H. Al-Asadi ماجد الاسدي AU - Asaad R. Al-Hilphy اسعد رحمان الحلفي PY - 2019 VL - 32 IS - 2 SP - 60 EP - 73 JO - Basrah Journal of Agricultural Sciences مجلة البصرة للعلوم الزراعية SN - 18175868 AB - This study was carried out to investigate the effect of modified atmosphere packaging and frozen storage period in the colour characteristics of chick thigh meat. The treatments were 70%CO2+15%N2+15%O2, 70%CO2 +30%N2, 70%CO2+ 30% O2 ,50%N2+50%O2, vacuumand clove oil at different frozen storage periods (1, 30, 60,and 90 days at -18 C). An 84 chick thigh meat pieces were utilized in this study. Polyethylene bags were used in packaging meat under vacuum, then filled with different gases. Colour parameters such as lightness (L*), redness/greenness (a*), yellowness/blueness (b*), Chroma (ΔC), the total colour difference (ΔE), and hue angle (h) were studied. The results demonstration that the modified atmosphere packaging treatments have a significant (P<0.05) effect on L*, a*, h values, but b*, ΔC, and ΔE parameter were not significantly affected by the treatments. Furthermore, the frozen storage periods have a significant (P<0.05) effect on L*, a*, b*, h, ΔC, and ΔE values. The result clarified that the effect of the interference between the modified atmosphere packaging treatments and frozen storage periods on a*, ΔE, ΔC, and h values was not significant, but its effect on L* and b* was significant (P<0.05). The results also showed that the highest L* value was 54.12 by using vacuumed packaging treatment on 30 days of frozen storage period. a* value was increased by using modified atmosphere packaging treatments but decreased with the increase of frozen storage period. b* value was ranged between 0.70 by control to 16.65 by using 70%CO2+15%N2+15%O2. The lowest ΔE, ΔC, and h values were 4.96, 2.70 and 0.53 by using70%CO2+30%N2, 70%CO2+30%N2 and clove oil on 30, 1 and 1 days of frozen storage period respectively.

ER -